Launch of the Lunar Reconnaissance Orbiter, from Astronomy Picture of the Day, thanks to a tip by Tammy. See full sized image here. As part of the overall experiment, the Centaur upper stage will slam into the lunar surface, with an impact energy I guesstimate as comparable to 10 tons of TNT.
I sort of badmouthed the Moon here, but this is pretty cool!
Admin note: Google seems to have tentatively fixed the glitch that hampered redirect from the previous .blogspot URL of this blog. Of course, if you haven't been able to find your way here, you won't be able to read this notice. :-(